ISO/IEC 7487-1:1993 Preview
Information technology -- Data interchange on 130 mm (5,25 in) flexible disk cartridges using modified frequency modulation recording at 7 958 ftprad, 1,9 tpmm (48 tpi), on both sides -- ISO type 202 -- Part 1: Dimensional, physical and magnetic characteristics
This standard was last reviewed and confirmed in 2010. Therefore this version remains current.
Specifies the dimensional (environment and transportation, dimension of jacket, liner and disk), physical (inflammability, coefficient of linear thermal expansion, coefficient of linear hygroscopic expansion, opacity, torque) and magnetic (track geometry, functional testing) characteristics and requirements of the cartridge so as to provide physical interchangeability between data processing systems.